Bresser NATIONAL GEOGRAPHIC 91-30700 Instrucciones De Uso página 11

Reloj accionado por un líquido; sensor acústico electrónico
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Important safety information
for the operation of this experiment
• A ll persons in the direct vicinity of the experiment setup must use
appropriate safety goggles
• Clean all parts after using.
• M ake sure all containers are firmly closed after using and are
stored safely.
• W ash your hands after touching any parts.
• Do not use any parts that do not belong to the set.
• Never eat, drink or smoke in the direct vicinity of the experiment.
• C hemicals must not come into contact with body parts - especially
with mouth or eyes.
• Do not store any food in the containers.
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